Machine-brake.



G. L. TAYLOR.

1110mm BRAKE. APPLICIATION FILED FEB. 21, 1908.

8 BHEETB-BHEET 1.

U 1 VENTOR G. L. TAYLOR.

mcnmn BRAKE.

101! 1111.21) Pimp, 190a Patented Mar. 28, 1911.

3 SHEETS-SHEET 2.

C. L. TAYLOR.

MACHINE BRAKE.

APPLIGATION FILED 1 212.21, 190a.

Patented Mar. 28, 1911.

3 BHEETHKEBT 3.

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- [NVENTOR I W 'ifif;

' Allorney W TNESSES 'Which the armature is connected,,--t

UNITED STATES OFFICE.

CLARENCE L. TAYLOR, 0F ALLIANCE, OHIG ASSIGNUE'; TO THE MORGAN ENGINEERING COMPANY, (all .ELLILi-EINBE, OlEiIfi MIL To all whom it may concern:

Belit known that I, CLARENCE L. TAYLOR, of Alliance, in the county of Stark and State of Ohio, have invented certain new and useful Improvements in Machine-Brakes; and I do hereby declare the following to be a full, clear; and "exact description of the invention, suclr will enable others skilled in theart to wl 't; appertains to make and use the same This invention relates to improvements in machine brakes, and more particularly to such as are closely associated with an elec= tric motor and adapted to control the oper-. ation of brake shoes which cooperate with a brake wheel on the armature shaft,the object of the invention being to provide a structure of the character above mentioned, which shall be of compact construction, com.- prise comparatively few parts, and which shall operate automatically to effectually apply the brake shoe to the brake wheel or insure the ready release of said brake shoes from the brake wheel.

With this object in view the invention consists in certain novel features of construction and combinations of partsas hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure l is a side elevation showing the application of my improvements. Fig. 2 is an enlarged, fragmentary sectional view. Fig. 3 is a detail view showing the armature of the brake mechanism and its connection with the shaft which it. actuates to. operate the brake shoes. Fi'g. dis a detail face view of said armature. Fig. 5 is a view of the arm which assists in connecting the armature adjustably with the shaft. Fig. 6 is a face view of that portion of the motor frame which forms the brake magnet. Fig. 7 is a view of the shaft with he various bearings for the parts connected with said shaft being shown diagrannnatical y. Fig. 7 is a plan view of oneof the brake shoe levers, and Figs. 8 and 9 are detail views of the cam-lever.

1 represents the frame of an electric motor of. the iron-clad type, having field magnet poles2. This casing is provided at its ends with suitable openings for the accommodation of armature bearings (not shown) and to the armatureshaft 3 a brake Specification of Letters lfatent.

Patented Mar. 28, 1911.

Application filed February 21, 1908. Serial No. 417,176.

frame and carry brake shoes 8 to engage the periphery of the brake wheel l. The shoe also upwardly beyond said pocketed enlarge- 1nent,-the upper end of said rod being threaded for the reception of a nut 12. Between this nut' and the bottom of the pocketed enlargement, a spring 13encircles the rod 11. This spring serves to apply the shoes to the brake wheel and its tension can be read- .ily adjusted by means of the nut 12.

The motor frame or casing 1 is provided exteriorly with two circular enlargements 14, 15, the inner one of which constitutes the core of an electro-magnet and the space between said circular enlargements serves to receive the winding 15 of this magnet. Adjacent to the magnet thus formed, the motor casing is provided with bearings 16 for the accommodation of a shaft 17. The armature for the magnet consists of a circular disk or plate 18 having two perforated lugs 19 mounted upon the shaft 17. An arm 20 is provided atone end with a perforated enlargement which constitutes a bearing 21 on the shaft 17 at a point between the lugs or arms19 of the armature 18. The arm 20 is keyed to the shaft 17 as shown at and this aim projects over the armature 1S, terminating in line with the center of the latter. At its free end the arm 20 is made with a pocketed enlargement through which a bolt passes. The lower end of this bolt is pivotally attached to lugs 25 at the center of the armature 1.8 and the upper end of said rod or bolt 24 (which projects beyond the arm 20) is threaded, as at 26, to receive a thumb nut 2-7 which is normally prevented from turning by means of a tension of the s ring 30 which affords such engaging in any of a series of notches 41 in Y coil of the brake magnet is open, the brake cuitjis closed the brake'magnet. will attract I the shaft 17. The turning of thesha-ft l7 actuate the cam lever 33 and by the coarmature and. the brake shoes will be reand resting-on lugs 35 'on the'shoelever '6- cani lever 33 projects 'out-wardly -and terminates under the free end of the-arm 9.'of

threaded pin38' passes." 'Thelowerendof this pin is provided with 'a "headr 3 9'to be engaged by the arm 36 of the cam lever and;

' lever and the free end, of" the shoe lever 5,

screw 38 and this screw can be secured at .of parts above described, it will be seen that shoes embracing the brake wheel, a shaft on yielding connection can be readily, adjusted by means of the thumb-nut- 27. I

A- canrlever. 33 is secured to the shaft 17, the arm 34 of 'said.,lever beingbifurcated at respective sides-of theconnection-of the rod 11 to the latter; 3 The arm 36 of *the the shoe lever The arm 9 i's ,provided with tubular? boss 37 through which aadjustment between said arm 36 of the can be readily effected by means of the any desired adjustment by means of 'a-jpin' 40 passing transversely therethrough, and

the upper end of the tubular boss 37;

The coil 15 of the electro-magnet may be included, in any suitable manner,.in circuitwith the motor and for the accommodation of the leading in wires ofsaid coil grooves, or notches l-2, 43,- (Fig. 6) are provided.

, From the construction and arrangement when the circuit of the motor and of the shoes will be applied to the brake-wheelby the-action of the spring 13. When the cirits armature and, thus transmit motion to operation of the arms of the latter with the free ends of the respective shoe levers, the shoes will be moved. against the'resistance of the spring 13 to release the brake wheel and hence-the armature of the motor. Thus when the motor is running and the circuit is opened, the brake magnet will become deenergized and the brake shoes w-illbe applied atonce'by the action of the spring 13. As soon as the circuit is closed to start the motor the brake magnet will actuate its leased from the brake wheel in the manner above explained. i Various slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope, and hence I do not wish to restrict myself to the precise con structive details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent,is. 4

1.- The combination with an electric motor frame and motor'slia'fh'and a brake wheel on 'the motor. shaft, of an electro-magnet' on the field magnet frame of the motor, brake pivotally suppo the motor-frame, an armaturejfor said electro-magnet having hinged connection vfith said shaft,. anarm securedfto said shaft and connected with the hinged armature, connectionsv between said shaft and the brake shoes for releasing-the latter-from the brake wheel, and a spring for applying the brake shoes. to the brake wheel.

' 2. The combination with an electric motor frame and motor shaft, and a brake, wheel.

on the motor shaft, of a single magnet having its core integral with the outer face of pivotally'supported at one end and embracthe magnet, connectionsbetween the-hinged armature and both of the brake shoes for releasing'the latter from the brake wheel, and a spring for applying the brake shoes.

I .3. The combination with an electricmotor frame and' motor shaft, and a brake wheel secured to the shaft thereof, of shoe levers spring operating to apply the shoes carried by said levers to the brake wheel, a. shaft inounted. on the motor frame, a cam lever secured to said shaft and cooperatin with the free ends of the respective shoe levers, an electro-magnet on the field magnet frame rted by the motor frame, a"

'the field magnetffra'me of the.-motor and I having a winding on said core, brake shoes 1mg the'brake wheel, ahinged armature for of the motor, an armature for said magnet hinged to said shaft, and an arm connecting saidarmature with the shaft car ing the cam lever, whereby the movemento the armature in one direction will actuate the cam levers to move the shoe levers in a direction to release the brake wheel.

4. The combination with a motor frame and. motor shaft, and a brake wheel'on the shaft thereof, of a magnet on the frame of saidmotor, a shaft mounted onthe motor frame, an arm secured to the shaft,-,an armature for the magnet connected loosely with said arm,. a yielding connection between said arm, and the armature of saidmagnet,

brake shoes embracing the brake wheel, and a cam lever secured to said shaft and cooperating with the brake shoes.-

5'. In a brake, the combination with a brake wheel, shoe levers, a shaft and a cam lever secured to said shaft and cooperating with the shoe levers, of a magnet, an armature for said magnet, an arm secured to said shaft-,a yielding connection between said arm and the'armature of said magnet, and means for adjusting said 'yielding connection.

6. In a brake, the combination with a brake wheel, shoe levers, a shaft, a cam lever secured to the shaft'andf-cooperating with the-shoe levers, a magnet, and an armature for saidmagnet, of an arm secured to the shaft and provided at'its free end with a pocketed en argement, a rod passing through said pocketedenlargementand pivot'ally attached at one end to the armature of the magnet, a spring interposed between said pocketed enlargement and said rod, and a thumb not on said rod for adjusting the ten sion of said spring and the relation of the arm to the armature of the magnet.

T. In a brake, the combination with a brake wheel, shoe levers and a cam lever cooperating with the shoe levers, of a magnet, a pivoted armature for said magnet, an arm connected with the cam lever and projecting over the armature of the magnet. a rod pesingthrough said arm and connected 'with said armature, a spring interposed between the arm and rod, a thumbnut on the projecting end of said rod and means for holding said nut at any desired adjustment. 8. In a brake, the combination with a brake wheel, a shaft and a cam lever secured to said shaft, of shoe levers embracing the I brake wheel. the free end of one vof said shoe levers disconnected from but disposed in position to be engaged by one arm of the cam lever, an arm projecting from the other shoe lever and terminating over the other arm of the cam lever and disconnected therefrom, a headed pin adjustable in the free end of the arm on the shoe lever and adapted to be engaged by the adjacent arm ofthe cam lever, and means for securing said pin in any desired adjustment. 4

In testimon whereof. I have signed this specification in the presence of two subscribing witnesses.

CLARENCE L. TAYLOR. VJitnesses:

FRED E. FANNER, D W. PELL. 

